buildx failed with: ERROR: failed to build: failed to solve: process "/bin/sh -c if [ \"$TARGETARCH\" = \"amd64\" ] || [ \"$TARGETARCH\" = \"arm64\" ]; then cmake -S . -B build -DCMAKE_BUILD_TYPE=Release -DGGML_NATIVE=OFF -DLLAMA_BUILD_TESTS=OFF -DGGML_BACKEND_DL=ON -DGGML_CPU_ALL_VARIANTS=ON; else echo \"Unsupported architecture\"; exit 1; fi && cmake --build build -j $(nproc)" did not complete successfully: exit code: 2